Materials Data on Rb3BAs2 by Materials Project

Rb3BAs2 crystallizes in the monoclinic C2/c space group. The structure is two-dimensional and consists of two Rb3BAs2 sheets oriented in the (0, 1, 0) direction. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 4-coordinate geometry to four equivalent As3- atoms. There are two shorter (3.63 Å) and two longer (3.71 Å) Rb–As bond lengths. In the second Rb1+ site, Rb1+ is bonded in a 5-coordinate geometry to two equivalent As3- atoms. There are one shorter (3.56 Å) and one longer (3.74 Å) Rb–As bond lengths. B3+ is bonded in a linear geometry to two equivalent As3- atoms. Both B–As bond lengths are 1.89 Å. As3- is bonded in a 1-coordinate geometry to four Rb1+ and one B3+ atom.